Buggy code:
synchronized boolean match ( EndpointDescription ed ) { } } class ImportRegistration implements org . osgi . service . remoteserviceadmin . ImportRegistration { private RemoteServiceAdmin . ImportEndpoint importEndpoint ; ImportRegistration ( RemoteServiceAdmin . ImportEndpoint importEndpoint ) { } synchronized ID getContainerID ( ) { } synchronized EndpointDescription getEndpointDescription ( ) { } synchronized boolean match ( IRemoteServiceID remoteServiceID ) { } synchronized RemoteServiceAdmin . ImportEndpoint getImportEndpoint ( EndpointDescription ed ) { } public synchronized org . osgi . service . remoteserviceadmin . ImportReference getImportReference ( ) { } public void close ( ) { } public synchronized Throwable getException ( ) { } public synchronized String toString ( ) { } } class ImportReference implements org . osgi . service . remoteserviceadmin . ImportReference { private ServiceReference importedServiceReference ; private EndpointDescription endpointDescription ; ImportReference ( ServiceReference serviceReference , EndpointDescription endpointDescription ) { } public synchronized ServiceReference getImportedService ( ) { } public synchronized EndpointDescription getImportedEndpoint ( ) { } synchronized void close ( ) { } public synchronized String toString ( ) { } } private void publishEvent ( RemoteServiceAdmin . RemoteServiceAdminEvent event , EndpointDescription endpointDescription ) { } private void postEvent ( RemoteServiceAdmin . RemoteServiceAdminEvent event , EndpointDescription endpointDescription ) { } private String [ ] getSignersForBundle ( Bundle bundle ) { } private void publishExportEvent ( RemoteServiceAdmin . ExportRegistration exportRegistration ) { } private void publishImportEvent ( RemoteServiceAdmin . ImportRegistration importRegistration ) { } private void closeRemoteServiceAdminListenerTracker ( ) { } private RemoteServiceAdminListener [ ] getListeners ( EndpointPermission perm ) { } private RemoteServiceAdmin . ExportEndpoint findExistingExportEndpoint ( ServiceReference serviceReference , ID containerID ) { } private EventAdmin getEventAdmin ( ) { } private void postRemoteServiceAdminEvent ( String topic , Dictionary eventProperties ) { } private void closeEventAdminTracker ( ) { } private void closePackageAdminTracker ( ) { } private Object consumerContainerSelectorTrackerLock = new Object ( ) ; private ServiceTracker consumerContainerSelectorTracker ; private void closeConsumerContainerSelectorTracker ( ) { } private Object hostContainerSelectorTrackerLock = new Object ( ) ; private ServiceTracker hostContainerSelectorTracker ; private void closeHostContainerSelectorTracker ( ) { } protected IHostContainerSelector getHostContainerSelector ( ) { } protected IConsumerContainerSelector getConsumerContainerSelector ( ) { } private Version getPackageVersion ( ServiceReference serviceReference , String serviceInterface , String packageName ) { } private Map < String , Object > createExportEndpointDescriptionProperties ( ServiceReference serviceReference , Map < String , Object > overridingProperties , String [ ] exportedInterfaces , String [ ] serviceIntents , IRemoteServiceContainer rsContainer ) { } private Map < String , Object > copyNonReservedProperties ( ServiceReference serviceReference , Map < String , Object > overridingProperties , Map < String , Object > target ) { } private ContainerTypeDescription getContainerTypeDescription ( IContainer container ) { } private String [ ] getSupportedConfigs ( IContainer container ) { } private String [ ] getImportedConfigs ( IContainer container , String [ ] exporterSupportedConfigs ) { } private String [ ] getSupportedIntents ( IContainer container ) { } private ID [ ] getIDFilter ( EndpointDescription endpointDescription , ID endpointID ) { } private String getRemoteServiceFilter ( EndpointDescription endpointDescription ) { } private org . osgi . service . remoteserviceadmin . ImportRegistration handleNonOSGiService ( EndpointDescription endpointDescription ) { } private RemoteServiceAdmin . ImportEndpoint createAndRegisterProxy ( EndpointDescription endpointDescription , IRemoteServiceContainer rsContainer , IRemoteServiceReference selectedRsReference ) throws Exception { IRemoteServiceContainerAdapter containerAdapter = rsContainer . getContainerAdapter ( ) ; ID rsContainerID = rsContainer . getContainer ( ) . getID ( ) ; IRemoteService rs = containerAdapter . getRemoteService ( selectedRsReference ) ; if ( rs == null ) throw new NullPointerException ( ( ( ( "getRemoteService<seq2seq4repair_space>returned<seq2seq4repair_space>null<seq2seq4repair_space>for<seq2seq4repair_space>selectedRsReference=" + selectedRsReference ) + ",rsContainerID=" ) + rsContainerID ) ) ; Map proxyProperties = createProxyProperties ( endpointDescription , rsContainer , selectedRsReference , rs ) ; List < String > interfaces = endpointDescription . getInterfaces ( ) ; <START_BUG> ServiceRegistration proxyRegistration = getClientBundleContext ( ) . registerService ( ( ( String [ ] ) ( interfaces . toArray ( new String [ interfaces . size ( ) ] ) ) ) , createProxyServiceFactory ( endpointDescription , rs ) , ( ( Dictionary ) ( PropertiesUtil . createDictionaryFromMap ( proxyProperties ) ) ) ) ; <END_BUG> return new RemoteServiceAdmin . ImportEndpoint ( containerAdapter , selectedRsReference , new RemoteServiceAdmin . RemoteServiceListener ( ) , proxyRegistration , endpointDescription ) ; } private ServiceFactory createProxyServiceFactory ( EndpointDescription endpointDescription , IRemoteService remoteService ) { } private Collection < Class > loadServiceInterfacesViaBundle ( Bundle bundle , String [ ] interfaces ) { } class ProxyServiceFactory implements ServiceFactory { private IRemoteService remoteService ; private Map < String , Version > interfaceVersions ; public ProxyServiceFactory ( Map < String , Version > interfaceVersions , IRemoteService remoteService ) { } public Object getService ( Bundle bundle , ServiceRegistration registration ) { } public void ungetService ( Bundle bundle , ServiceRegistration registration , Object service ) { } } private Object createProxy ( Bundle requestingBundle , ServiceReference serviceReference , IRemoteService remoteService , Map < String , Version > interfaceVersions ) { } private Map < Bundle , RemoteServiceAdmin . ProxyClassLoader > proxyClassLoaders = new HashMap < Bundle , RemoteServiceAdmin . ProxyClassLoader > ( ) ; private void closeProxyClassLoaderCache ( ) { } private ClassLoader getProxyClassLoader ( Bundle bundle ) { } private void ungetProxyClassLoader ( Bundle bundle ) { } protected class ProxyClassLoader extends ClassLoader { private Bundle loadingBundle ; private int serviceUseCount = 0 ; public ProxyClassLoader ( Bundle loadingBundle ) { } public Class loadClass ( String name ) throws ClassNotFoundException { } public int getServiceUseCount ( ) { } public void addServiceUseCount ( ) { } public void removeServiceUseCount ( ) { } } private PackageAdmin getPackageAdmin ( ) { } private ExportedPackage getExportedPackageForClass ( PackageAdmin packageAdmin , Class clazz ) { } private String getPackageName ( String className ) { } private void comparePackageVersions ( String packageName , Version remoteVersion , Version localVersion ) throws RuntimeException { } private void verifyServiceInterfaceVersionsForProxy ( Bundle bundle , Collection < Class > classes , Map < String , Version > interfaceVersions ) { }

Fix:
ServiceRegistration proxyRegistration = Activator . getDefault ( ) . getProxyServiceFactoryBundleContext ( ) . registerService ( ( ( String [ ] ) ( interfaces . toArray ( new String [ interfaces . size ( ) ] ) ) ) , createProxyServiceFactory ( endpointDescription , rs ) , ( ( Dictionary ) ( PropertiesUtil . createDictionaryFromMap ( proxyProperties ) ) ) ) ;